FeaturesUniform warming: USB hand warmers can evenly heat your hands to about 40(5) C, which is the most comfortable temperature range of the human body. Wearing our USB warming gloves will not make your hands feel overheated and dry.product specificationsProduct type: Heating glovesMaterial: polyester fiberUSB cable length: approx. 130 cmPower supply: USB plug-in use (this product does not contain a built-in battery, after inserting the heater, turn off the heater to stop heating).Heating position: Palm and back of hand Hand cleaning method: When cleaning is required, turn the glove over, take out the heating piece, and then wash Heating temperature: 40 C 5 CScope of supply1 pair of heated gloves1 x usb power cordPrecautions1. Please unplug the power cord when not in use to avoid affecting the life of the chip.2. Please remove the chip before cleaning.3. Must be used under adult supervision.4. This glove can only be connected via USB power supply, please do not connect it directly to AC power supply.5. Due to manual measurement, please allow certain errors.